Creme de Menthe Ice Cream Sandwiches

INGREDIENTS

• 1 quart(ish)
• or store bought mint chip ice cream
• 1/2 cup vegetable shortening
• 1 1/4 cups light brown sugar, packed
• 1/2 teaspoon baking powder
• 3/4 teaspoon salt
• 1/2 cup dark or Dutch-processed cocoa powder, sifted
• 1/2 teaspoon instant espresso powder
• 1/2 teaspoon vanilla extract
• 2 cups all-purpose flour, divided